Class: RunSSHLib::CLI

Inherits:
Object
  • Object
show all
Defined in:
lib/runsshlib/cli.rb

Constant Summary collapse

COMMAND = 
%w(shell add del update print import export cpid scp)
MAIN_HELP = 
<<-EOS
Usage: runssh [global_options] COMMAND [options] <path>

A utility to bookmark multiple ssh connections in heirarchial order.
For a better understanding of host definitions and bookmarks, Read
the provided README.rdoc or go to http://github.com/babysnakes/runssh.

COMMAND : One of the commands mentioned below. It's possible to
          type only part of the command as long as it's not ambiguous.
<path>  : A space-separated list of names (e.g, one two three) that
          leads to a host definition. For available completions
          append " ?" to the end of path.

Available commands:
* shell  : Open ssh shell on remote host
* scp    : Copy files from/to remote host
* add    : Add host definition
* del    : Delete host definition
* update : Update host definition
* print  : Print host definition
* import : Import configuration
* export : Export configuration
* cpid   : Copy ssh public key to authorized_keys on remote host

For help on commands run:
runssh help COMMAND

Global options:
EOS

Instance Method Summary collapse

Constructor Details

#initialize(args) ⇒ CLI

Initialize new CLI instance and parse the supplied arguments.



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# File 'lib/runsshlib/cli.rb', line 56

def initialize(args)
  args.unshift '-h' if args.empty?
  @global_options = parse_args(args)
  exit_with_help if args == ['help']
  return if @global_options[:update_config]

  # workaround to enable 'help COMMAND' functionality.
  if args.first == 'help'; args.shift; args << '-h'; end
  # indicate path completion request
  @completion_requested = args.delete('?') ? true : false # flag for required options
  @cmd = extract_subcommand(args)
  @options = parse_subcommand(@cmd, args)
  @c = init_config
  # path in ConfigFile uses symbols and not strings
  @path = args.map { |e| e.to_sym }
rescue ConfigError, InvalidSubCommandError, Errno::ENOENT => e
  Trollop.die e.message
rescue OlderConfigVersionError => e
  message = construct_update_config_message e.message
  HighLine.new.say(message)
  exit 1
end

Instance Method Details

#run ⇒ Object

run



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# File 'lib/runsshlib/cli.rb', line 80

def run
  if @global_options[:update_config]
    run_update_config
  elsif @completion_requested
    puts @c.list_groups(@path)
  else
    command_name = 'run_' + @cmd
    m = method(command_name.to_sym)
    m.call(@path)
  end
rescue ConfigError, ParametersError => e
  Trollop.die e.message
rescue AbortError => e
  abort e.message
end